Japan: The fourth earthquake over 5.2 magnitude has hit near Honshu Japan

As far as we can tell no tsunami warnings have been issued for any of these four earthquakes, the latest of which was a 6.2 magnitude earthquake
4 large earthquakes off Japans coast in short time

Mag. 6.2 2011/09/16 21:08:06 40.221 143.050 20.2 OFF THE EAST COAST OF HONSHU, JAPAN
Mag. 5.5 2011/09/16 20:11:15 40.305 143.180 19.0 OFF THE EAST COAST OF HONSHU, JAPAN
Mag. 5.2 2011/09/16 19:39:46 40.403 142.034 10.4 NEAR THE EAST COAST OF HONSHU, JAPAN
Mag. 6.6 2011/09/16 19:26:42 40.288 142.727 36.3 NEAR THE EAST COAST OF HONSHU, JAPAN

3 large earthquakes off japan in just hours